A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Classification: Gaskets,washers & other seals
NSN 6130-00-869-8908
NSN 6130-01-338-3707
NSN 5835-01-580-0446
NSN 5935-00-403-4646
NSN 6320-01-176-8367
NSN 5915-01-454-5650
NSN 5965-00-938-2814
NSN 5996-00-155-6904
NSN 5835-01-592-2350
NSN 5990-00-534-9798
NSN 6610-00-951-2735
NSN 5965-01-648-5763